Electric driving system and electric vehicle
A technology of electric drive system and assembly, applied in the direction of transmission, transmission parts, differential transmission, etc., can solve the problems of energy loss, achieve the effect of reducing energy loss, reducing layout space, and improving rotation accuracy
Active Publication Date: 2021-05-25
BEIJING ELECTRIC VEHICLE
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Problems solved by technology
[0003] The purpose of the present invention is to provide an electric drive system and an electric vehicle, so as to solve the problem of energy loss caused by the permanent magnet synchronous motor in the prior art during continuous anti-drag operation
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[0036] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.
[0037] The invention provides an electric drive system and an electric vehicle aiming at the energy loss caused by the permanent magnet synchronous motor in the continuous anti-drag operation in the prior art, which reduces the energy loss caused by the anti-drag operation of the permanent magnet synchronous motor.
[0038] see figure 1 , is a schematic diagram of an electric drive system in an embodiment of the present invention, the electric drive system includes: an intermediate shaft 3 and a differential assembly 7, and also includes a synchronizer 1;
[0039] Wherein, the first output half shaft 5 and the second output half shaft 6 of the differential assembly 7 are coaxial with the intermediate shaft 3;
[0040] The synchronizer 1 includes: a bull...
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The invention provides an electric driving system and an electric vehicle, and relates to the technical field of vehicle structures. The electric driving system comprises an intermediate shaft and a differential assembly. The electric driving system is characterized by further comprising a synchronizer, wherein a first output half shaft and a second output half shaft of the differential assembly are coaxial with the intermediate shaft; the synchronizer comprises a bull gear meshed with the intermediate shaft, a pinion meshed with the differential mechanism assembly, and a joint part assembly connected between the bull gear and the pinion; and the joint part assembly is further connected to an actuator, and the actuator controls the joint part assembly to move, so that the bull gear and the pinion are in a joint state or a disconnection state. According to the scheme, the arrangement space of a power assembly is reduced, and the energy loss of a permanent magnet synchronous motor in the continuous reverse dragging operation process is reduced.
Description
technical field [0001] The invention relates to the technical field of automobile structures, in particular to an electric drive system and an electric automobile. Background technique [0002] At present, in order to improve the vehicle power and off-road capability, medium and high-end electric vehicles continue to introduce four-wheel drive models. In order to obtain higher efficiency indicators, most of the front and rear axle powertrains use permanent magnet synchronous motors. In smooth road conditions, in order to improve the economy of the vehicle, the vehicle needs to disconnect the power input of the powertrain auxiliary drive of the front axle or rear axle, but due to the characteristics of the permanent magnet synchronous motor itself, it will cause A lot of energy loss. Contents of the invention [0003] The purpose of the present invention is to provide an electric drive system and an electric vehicle, so as to solve the problem of energy loss caused by the ...
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IPC IPC(8): F16H48/12F16H48/38F16H57/023F16H63/30
CPCF16H48/12F16H48/38F16H57/023F16H63/30
Inventor 南云超苏正杲白伟
Owner BEIJING ELECTRIC VEHICLE